public void ShouldCallReturnResultFromProvider()
{
var expectedAddress = "A1";
var provider = MockRepository.GenerateStub<ExcelDataProvider>();
provider
.Stub(x => x.GetRangeValues(expectedAddress))
.Return(new ExcelCell[] {CreateItem(1) });
var expression = new ExcelAddressExpression(expectedAddress, provider, _parsingContext);
var result = expression.Compile();
Assert.AreEqual(1, result.Result);
}